Just changed my 'Angel Eyes" Corona Rings today. 35W Xenon filled H8, 7500K bulbs I bought on Ebay. WOW...it's like a totally modern car now. No more yellow rings. $16.99 a pair. It was SO easy in the 750i. A NIGHTMARE in the M6. You literally need the hands of a 4 year old to fit in there. Such a bad design!!